Jenkins Java 10+ Hackathon, 20 Jun 2018

Previous Meeting Next Meeting

⏯

youtube image

►

From YouTube: Jenkins & Java 10+ Hackathon. Day 3. Sync-up and Jenkins Development intro for beginners

Description

We will have a status sync-up session on the morning. As per request from hackathon participants, we will also have an introductory session to Jenkins plugin and core development for patch contributors.

Status doc: https://docs.google.com/document/d/1ed6wFOlq4cWrSL6UkCSzFbaY80AT-sk8ncB4Fz5QXyM/edit#

A

Okay and be alive so hi, everybody today is a sync up call of Jenkins and the Javits and online hackathon. We will have a shot status of this session and then we will talk about contributing to the project, especially starting up development environments for patch contributors for genitals, against and core. And after that we will be able to answer any questions you have. If you are interested to participate, we have several channels. So one of the channels is our standard. Jenkins keto channel, Jenkins ketta.

A

So if you have any questions or if you want to participate, it just join there and we also have a participant link. So you can join our hangouts in I'll call em there and later we'll be distributing called the videos, so you will be able to get the content.

A

Okay, that's it from introductions and just provide more update. We have a video recording called a kickoff presentation which contains all the information. If you want to get this link or any other updates, one of the sources is Jenkins online makeup, so he you can find.

A

The haircut and updates oops, what's going on.

A

Okay, so Jenkins.

A

Too much fun, hey Jenkins and Javits an online hackathon, and here you can find all the links, including videos for all sessions and reveals post updates below. So you can drag the information game.

A

Okay, so I've got a cup from somebody: okay, let's move forward to the status, so we don't have so many people online now, but yeah many people were working yesterday on the Union to better the things out of the door and yeah I'll probably start from right. So we have posted a blog post about our day one day to progress, so you can go to this blog post and see what we did together. So one of the major accomplishments that we get got Jenkins pipeline running, including critical features like glowing declarative pipeline, shared libraries.

A

So yep implosion is a ready for evaluation and we also have a docker image. So if you want to try a pipeline lotion and a lot of arches we've created, you can just start from this command line and you go and get everything out of the box.

A

Moreover, there are people working on development tools and on exploratory testing, so one of major issues is to get our development to link up to date, so Nikola, Oliver, Sam Damian are working on getting tests, Ryan communicating or getting our tools updated for Java, naina, Bob and they're. Also on ongoing testing for by different contributors, for example, John Paolo is working on easy, Jenkins update and solitaire testing and there are other contributors. So this is a status update from yesterday and we can just switch to the please status.

A

So, let's start from week, one.

B

So my current plan today is to to rely and what we had with LED to fix animal sniffers that so we have actually we work in parallel, so more as a to two potential or fix for it. Maybe they need to be much anyways that will email me to patch stapler and they're also degrees. We have which rely on direct field access via reflection with which is deprecated, nine, ten, eleven or you're going, which one is showing warnings, but anyway we want to get rid of that.

B

So I I will experiment with that. Today. Oh.

A

I'm not sharing my screen.

A

A

Okay, sorry about that yeah, so yeah, whatever was going to tell you that we have some did blog post and he can find everything there and yeah. Since Nicola was talking about the update, yeah I! Guess that poaching step here is it related to beasts shields product.

B

Yeah exact so yeah here I'm using the so-called new teacher maturities jar, which means that, within the same jar you have one class, are getting, let's say: Java H and you provide the same class but for Java, nine or ten or eleven and reason. Gdk will just pick up the code version for yourselves that such a jar is still compatible with all Java platform.

B

The new class will just being ignored and and on recent GDK, you will just get the best matching version of the class for for the platform, so these are lowers to switch from one implementation to 0-0, depending under the platform requirement and constraint.

B

So this will remove the warnings we get about rejection. This won't fix the issue with the module system, but I don't expect that we get Jenkins to be itself using the Java module system. So that should not be an issue for us. We have one of alternate.

A

Weeks under the discussion, but if but illegal reflective access is one of the major problems, so gravity is great.

A

Thank You Nicola Traci. What about you.

C

Hi good morning, yes, so today, I'm gonna pick up running so actually. First of all, um let me introduce Jonah is joining in today, he's sitting behind me, but probably won't be showing his face that much. um But yes, so we've worked together for a long time, he's a open source, committer foresee CDT in Eclipse Alon and also does the build engineering for it. So pretty experienced Java developer, so gonna take advantage and we're gonna pay a program coming in with some of the newbie bugs.

C

So what I'll like to do is run your new docker image and kind of go through tutorials and things and see how well I get it working and then anything we break you can see if we can fix, but also looking at the newbie bugs and in particular this one particular newbie one which is Jenkins four six six one eight I thought that would be a good one to understand like how does someone you kind of gotta go about fixing it.

A

C

Yeah, this does two angles: will sort of attack from.

A

A

That's great and after a bit status, SIM card will have introduction to begin development. So if you have any questions, we can just discuss them online and yep.

A

A

Yeah, it's only me yes, oh my oblate forgives, the lots of tooling to get pipeline stuff running and finally, to even go to this lotion. Gdk tiny image. I've also written a blog post. Technically, it has been posted yesterday. But for me it was already to date so yep it's a status update which I was trying to show in the beginning of the meeting. So it includes all information what we wrote and how to run Jenkins, and we also updates from other activities.

A

So this is one of the parts and yep today, I'm going to work on some pending pushes so we have bytecode transform awaiting further leaves. Also, you have extras executive Boulevard. Maybe we will have some. This is a good area for new differently fixes, so we can talk about it and yeah. If we get them done, I will be happy to spin the release and yeah. Maybe I will continue working on some core patches.

A

Will those pick up action, guidelines etc and if I have time, I will focus on my detergent critical stars stuff from the Jenkins course, because we have Java web stuff and we need to attach it to a plug-in to keep everything working and it will be one of my main activities.

A

Okay, I guess: that's it with the sync up.

A

Do we have anything else to discuss before we move on I.

A

Guess not okay, so then we can just continue this introductory stuff. So yesterday we had a brief introduction to how set up environment and how to get Jenkins running, so we could repeat it to be, and then we could continue with some special topics. Yeah.

C

Well, I was wondering if we could approach this so I'm, looking at a specific bug in the newbie section. So could we bring that up and talk about maybe what code that would be likely to be fixed in and then set up a developer environment if it's for plug-in or for core?

C

Yes, I can give you the bug. Number yeah.

A

You can just put it post it in detail.

C

Okay, so this one is illegal, reflective access from Jenkins core.

C

So it sounds like just.

A

A second I will share my screen. Yeah.

C

Let me get it up: okay,.

A

So here's our book from Jenkins, core and yeah go but reflective access is one of the most popular to think we know it doesn't the breakage engines from Ryan, but when you run this department you can find it and obviously, at some point these things will cause issues. So what we can see here, if it this bug, is it related to auto? Jank is old, so it's 2.16 and there is a probability that this bug has been already fixed, but we can easily check that okay.

D

A

C

A

So what we can see here from the stack trace? Actually, if you want to get these tech traces when you run Jenkins, you need to set up illegal access. Equal debug flock. So then I you'll get full stack traces for the issues and if you set it up, you get the stack trace posted here. So we can see how it happened.

A

Interesting things start from there, so we see that there is a plug-in manager doing some plugin loading and in order to supply in loading clay, it needs to plus load some beads and during this was Odin could be try to find Klaus and due to whatever reason we use method which shouldn't be used because it's a restricted. So that's why we got a lead over effective access. The first thing would be to just start from here across load deflection toolkit.

A

So since we do not know whether other stuff is up-to-date or not, we captured a repository and there is a cool find file feature. So when you know cost mean you just paste it here, you find the class and then you can start analyzing the code. So the last change in this class was in April 2016, so it gives us high confidence that oh yeah, that there was no recent changes, but what we can see in the commit history, Evette batiste mottos in 2016- has already pushed something.

A

And what we can see here is that yep. There is other approaches, for example, okay, so you may see that there are some reflection beats fixed and let's see what it fixes our particular keys.

A

Okay, so we know that the name of the method is fine class, so we can just put it here and we may see that this method is not presented in belief. So, although batiste fixed some reflection code, most likely this particular case still exists. So we return back to the code and we need try to find the metal here and actually it's right there in the beginning. So we take a number of classes. So, for example, fine class find loaded class find resource and we said you set accessible.

A

So this is everything which triggers the current project, because yet it shouldn't be used in Java, 9 plus because yeah, if you just access private methods- and there is no guarantee that they will be retained. So here we can see these EPS and, for example, for this particular method we have find class. So, let's see how it's used, it's a private static field, so it's not used outside the class. So the code is localized here we can now see to knit 20 locations.

A

One is find class in communication, which just involves something can throws a class not found exception. If it's not found and the second implementation is quite different, I guess it's just weekends. Now, if something is not fine found, so what we can do now we can start from checking whether we can fix a bit I'm going to start my ID. So.

A

Ok, I have a number of branches. So for this particular case we have several options in Jenkins repository now we have three branches, so one is master, it's ongoing releases. Then we have Java 10a support and Java 11 supported benches. So our current approach that if you want to propose a generic fix which is available for Java 8, we submitted against master, but then we can quickly adopt this patch in Java, 10 and Java 11 support even before it becomes available in weekly releases.

A

So then we can for changes spare and if you submit something which is not ready air for the master branch, you submit changes directly against these branches. For this patch I hope that we can create a generic fix, so I take master branch.

A

mmm I pull the current status of the master branch I.

A

Use source 3 for joy yeah, if you want you, can I use deets you like or any other to link, doesn't really matter and yeah I'm going to open my project now.

A

A

What was our class name? It's it's like if it in jenkins cross, older deflection toolkit. So yep is our project structure. We have several models here, the model we need to fix his chain in score. We go to sources, then main java jenkins, and here we have all the recollection total. So his bunch of these methods, I'll start from this method, so I want to touch others, so somebody can follow up easy fix, okay, mmm-hmm, so how we approached it.

A

So we know that there is fine class method here and I'm, pretty sure that we already have it in the new API. So, let's see the walk method takes several parameters. In our case, we can try examples.

A

Fine and what we have happening publicly yet so in public API ists we have load class and eh yeah, that's it so we still do not have defined class method. We need to run this folder, so what we can do is we can just go to class holder implementation.

A

Okay and let's see what is the current weather, it's fine quartz method. I just tried to find it. So we understand what is the guideline from developers, so it's protected. It means that we cannot. We still cannot involve it. This matter should be rewritten and it will be invoked by law cause ultimate after checking parent class, for course, loader. All the request was so yeah. There are difference between these methods. What we can do is firstly check. Water is load course implementation or whether we can replace that okay.

A

So we go here and then we go here and.

A

Here we can see the logic, so he gets a class loading clock. It's similar to what we have here. So we also acquire was loading clock, which is another deflection call, and then we try to get find class working so effectively. We'd have this logic in the call and this logic, but you may see that there is some B's, so, for example, so this is for null class loader, let's check out interface.

A

Can we have a no-cost order here, because if cost loader is never now, then we can say that we do not care about this logic at all.

A

All the we check that, unfortunately, not all Jenks codebase is annotated so far, and so you cannot trust annotations here. Let's see I mean there is fine class loader and what are they usages of this method?.

A

Okay, so he it take, PV is flicking the wrapper so for here we can be probably sure that was loaded is not not. Let's see, we can just start not taking bit in order to ensure that changes. We do a fine.

A

Okay, so I'm just trying to check where the value is said so when we create cross loader- and we pass it from here- and we it's the only constructor. So it means that if we know that this class folder is fine, then everything is fine.

A

We also tried to find a way where it's called, and you may see that now there are two methods: one is here: he it creates cross loader. It also returns something always- and here you have another class folder, and actually we pass null here, but it is for the test logic. So if we assume that cross logic is now- and yet we need to take all the logic he into account, so I mean that this logic- and here we have a problem, because yet this logic is unlikely. Something we want to introduce to find cause.

A

So replacing a fine class by a low to us is probably an unsafe change, but I will see whether we have any other little natives. Okay, we still follow me. Yes, okay, so yeah. We have fine cause method, it's not accessible, it's not accessible in class loaders, but a we will likely need to do something about that. So what usages we have immediately. We have one invocation and we actually mrs.

A

Lincoln scored, we have fewer other usages for cross folders. What do you have for find Claire? What's all that? It's fine, because it's protected yep, so we have illegal effective access exception, but yeah generally. There is no good way here from what is in the code to replace that, and my next step would be to just go: go.

A

Because what we see from the code, there are access, I can't say in other things and yeah. Maybe we can just find some guidelines how to replace that. So this is our jenkins see sure there is a similar issue in a xvq project and there is an issue in test: a fix, I'm sure what is it?

A

Okay, so, let's see what they see so.

A

Here we try to use clause for name, and here we okay, so instead of using cross loader, they just tried to use cross for me and.

C

That's just- and this is class we're looking at- has a lot of fine, so we might want to look at the whole thing of doing it a different way.

A

A

This seems to be one of their valid approaches, so we use cross for name but to be paths cross, older than which is probably feasible and yeah. Let's see what's see, we project beat like this. So far they haven't updated the code here.

A

Okay, mm-hmm, so do you want to try fixing it? Yes,.

B

A lot more is the question I had because and was looking where this reflective a class of the refrigerant to get is used, and actually it's only used when we are the first to curve feature set up. There's also always an alternative code to run with classic java api, so which word ionic, just PB class for the api, and so my point here is to try to understand why this hack has been introduced.

B

So actual benefits and user can can have for it and if it wouldn't just be simpler to just duplicate this yeah.

A

So yeah one of the things, so we do it of course depreciated. So yeah this one is definitely a temporary code. Let's see where they use, it is okay. So we have a number for accesses in Jenkins class, older, it's a birth class folder and another one is dependency. Class. Older is a tool which allows loading data from plugins enter their dependencies effectively. Both calls are low-level invitations, and you know it's C.

A

So one of the good things here that.

A

Yeah there are vacations and we could probably replace that by yeah. Actually, there are lots of calls, so mainly we could try ot factor in these methods and may give an ID removing the cross at all.

A

So Tracy do want her to do it. No.

C

No, so what I do well, I think I'd like us to get set up, so we can also navigate around the code, but that will take a little time.

D

C

It may be resumed in the hangout after the session. Okay,.

A

C

A

It's a tricky case but yeah. One of the ways forwards is to just try class for name API, this class loader and we initialize bug. So we initialize to false class order to God and yeah. Maybe it will be a possible forward here. We can be frequently creates problem.

C

Now that looks good, it's nice to see how to navigate through and it's nice to know these reflective issue. Warnings are not straightforward. It's not necessarily always a single line fix oh yeah.

A

It may be a single line fix, or it may be- almost impossible fix, for example, Nicola is doing, is working on step there and extreme fixes, which just depends on a reflection by design. So there are three keys here: okay I think we should switch to the development environment.

A

Okay, so if you want to develop our Jenkins I'll- probably repeat, some needs from the yesterday's call, but yeah we have for Jenkins I/o participate, which it's a landing page for all kinds of contributions and development. So if you are interested write code, you will just click here, and there are some guidelines, like beginner's guide, to contributing how to get started and how to stop plug-in development, environment and yeah. It would be starting points for those ones who want to contribute to plugins.

A

Actually in Jenkins we have several will to support it, so the most of the plugins I built is made in and we offer default main in a plug-in phones. So if you have maven, the setup is pretty trivial for some plugins we have Gradle support and even is BT. So for that this step is not that trivial. But here, for maybe you just follow these guidelines, you set up repositories from Missha, the plugins should be pulled, and then actually the only thing you need is to just check out the plug-in.

A

You want to build and run maybe in a clean package command, and then everything will work. So it's just me: nothing really special.

A

Jenkins plugins.

A

Ok, let's take something like that. So if I want to build it, I just say million in package, that's it so in order to build plugins now you need Java 8. If you want to build this Janicki $10 ongoing purchase during this hackathon so far that the flow is not raining, but for the most of modern plugins you will need giant. You may see that this plug-in is actually compatible with Java 7, but yeah. We can do it all on your own July, 8 and then yeah.

A

Actually, this is how you build the plug-in and then, if you want to test plugins, we have some Twitter ground. One of the tools is maybe in each area, so just second to terminate keep it running. So if you want to test a balloon, you can just say maybe online which carry around it's a part of Jenkins clinging. Actually I will skip this. So if you want to do to develop things quickly, you have an option for plugins.

A

So, for example, I don't want her to wait for tests just this label them it's fine for development, because if you want to prototype something, we still have continuous integration established for all popular Jenkins plug-ins for Jenkins course. So, even if you submit untested part, it will be tested. Okay and here then I can click. Maybe each parent and my plug-in development could be is running.

A

Okay, so something like that, so what it does it uses our internal to link in order to start up local Jenkins instance. You may see that it's powered by JT and you have JT plugins inside and yeah. Then it starts initialization and at some point it should actually start up.

A

Maybe it has already started off with oh.

A

You'd want to start up because I have another Jenkins on the spot. Okay,.

A

So yeah we let it start that, but yeah that's a ready. If you want to debug you plug in the results made in debug command, so you can just say: maybe in the back each be a run, then it starts in the bot mode. You cannot touch remote, debug it from your IDE to this port and that the debug info running. So if you want to test some changes, this is the best approach.

A

This is how it works for Java eat. If you want her to test patches on Java, 10 or Java 11, it becomes a bit more tricky because so far we don't have this tool. Ian, Craigie, I guess Nicola may have some updates, because he is working I with animal sniffer running. Okay, if I understand correctly, we don't have the full running so far.

A

Yes, it's still working through this okay. So what we do we do in such Keys? One of the most obvious ways is to just get the plugin deploy it on our instance. So we have Jenkins and in order to run our Jenkins for Java 10, you can just use a shot script, so he is it in my kit. So what I do with it? I have a clock to stop debugging then I specify Java home, which points to my dedicate and installation and then I run Jenkins command.

A

What I have here that I specify Jenkins home to be used, then I specify a Java version. I said the illegal access flog to get all notifications and I specified models, etc. So this command has been built according to our Iranian regime in guidelines. So if you want to have more information, the data is here: bloke runs Java, 10 and 11.

A

Ok, so you can find all the guidelines here and here the command lines you can use for Java 10 for Java 11, it's a bit more tricky, but if we still cannot do that, walk on it, if you don't use docker or whatever and yep once you get it wrong, you can just.

A

Put something like this so here it starts. My local Jenkins instance I mean so it's without docker or whatever, and you may see that there are lots of illegal or effective foxes issues, but generally the Jenkins instance starts up, so I can negate to it.

A

Yes, now it's correct not mean here and here's my instance. There is not that much inside, but if I want to test my plugin, so the current approach since development tooling, is not ready. You just deploy this plug-in. To instance, K documents, Jenkins police would Hawaii, have been building capacity, client plugin, so he is a target and in target I can find a way each by file. So here I just selected, it and I deployed it, and you may see that it's already installed and because he likely it was a dependency.

A

So I need to restart my instance, not a Twitter. They think updated and yeah. After that, you may see that your Jenkins is actually restarting I'm, not exactly sure that everything runs correctly, because it's fight a pretty alteration of the plugin, but I am Kim mystic. So far, oh yeah, or what we got here. You may see that I deployed snapshot, which is actually older than the version you need for dependencies, so some plugins refused to start up and actually it's one of the takeaways. If you want to test it.

A

So if you build something, if you test something it's better to use the weightiest versions now, so in my case, what I do I have a package to be quite funny.

A

My version is really old, so I just pull the new version.

A

And then I repeat all these steps actually.

A

For me know whether I'm redoing, that have any questions.

C

No nothing for me. Okay,.

A

So yeah, currently you can have all the sconce in place, so just refuses to start up other plugins but effectively. Your Jenkins instance is still running.

A

So we go through some plugins, but it's a recoverable state for Jenkins. So what we do is we go to manage Jenkins yeah. You may see that some other plugins are also.

A

What are some warnings so I just take manage plugins, we will choose file, it'll be finished. A I built has finished, so you just take it.

A

Okay, so this is the current flow. When we get testing tools ready, it will be more comfortable for contributors, because you will be just able to run plug-in development tools and attach the debugger. But now after you deploy the instance, you can also connect your debugger. If you have flux and debug your. You know, on the instance string, gelatin.

A

No, it's that correct, yeah, I hope not yeah, so no administrative warnings, so everything is fine and we have got our snapshot deployed. We can check it here if you want so install apache, httpclient yeah he's a local build and keep on it points to the previous installed version so yeah, that's it. This plug-in development.

A

We can take a look at deflection issues and maybe we could take a low-hanging fruit for plug-in. Would it be useful or would you try? What do you want to get some other information.

C

I think no more information out its let's get set up and map and be in a position to join and play around and fix things ourselves. Yeah.

A

Right so for plug-in development. All the guidelines say here: you may yeah these guidelines yeah. They won't exactly work for Java 10, so you may recommend to follow the approach I've presented. You want to say, save some time on deployment of the image and local war file, because it's not needed in many cases.

A

What we can take that we can take the image we've deployed so blocks hackathon. So yeah we have this command line, so what we can do is we can just say that instead I need to stop drinking. Since now we know we can say that we want to debug.

A

It should be working on this image and we can just start motion yeah. So it's a listening for the socket port. So if you want to debug the Jenkins core, we just connect the debugger or if we want to debug the plug-in we do the same. Okay, yeah I can just show it. If you want so remote default connection refused because I didn't expose to the post.

A

A

So we're service folks.

A

It's all with these flocks. Instead of setting up a local development environment for Java, 10, Java 11, you can just write, run in docker and then from your ADL's connect debugger and then do all the debugging needed. Even if your Jenkinson's and strands in docker.

C

Yeah it'll be nice.

A

What's going on this time,.

A

Let me check debug settings because so it's after five solvent it's localhost, each big Quranic.

A

We have premature closed I'm, not sure what has happened. Maybe it's also related to Java version. Yeah I will check it after the call but yeah. This is the idea so for Java, 8 images. It works like a charm, but here maybe I just need to update my ad because I'm using old fashioned and yesterday there was a bad line in the document that you need to update your reading action.

A

Second yeah. So in this huge document yeah there is suggested setup steps and one of the steps is, if you are using IntelliJ IDEA, you need to switch to this version to use GD keys and, in my case, I use all the versions. So probably they just doesn't work with Java GDP tend to link.

A

So we have if you're interested you'll, also start from these guidelines, and there are some tips and tricks which you need to be aware of.

A

A

That's the idea: what else can I show you or should we just proceed? Miss I.

C

Think that's fine when you've run things in Dhaka. When you finish is a it's fine, you just look at it. There's nothing! There's no cleanup or anything to do.

A

Actually, you can set up floods in boquete itself, so, for example, if I do not like this container and if I want to get it, you'll trust the Bible yeah and just use the barren flock, and that gets Nicolette and suggests many other facts for keeping in touch. Because here doctor pollutes a lot of disk space by default. Yeah but means yeah, but with our mo it will be disposed automatically, wants to continue three inches and.

C

That would be good, not too many things lying around Nikolas anything else right now that you'd recommend or that you have in your setup.

B

Nothing I could choose yes here.

A

Okay yeah, so if you run docker continuous, you know the first throw all initialization steps, because I haven't mounted Jenkins home as a volume, so this usually is not correct, but yeah. So you may see that I connected to this URL. But probably our images are connected to this endpoint or I. Don't want to install any other plugins and yeah.

A

I mean it takes some time but yeah. If you want, you can set up some configurations code in order to avoid it but yeah. Now you get your Jenkins instance just running in docker this all the versions and you can install your test plugins, develop them and connect the debugger. If you get a bit newer, ID, so everything you can do in daughter and if you want to setup more flux.

A

So, for example, if you want to configure initialization scenario, so if you wanted to have my pin code fudging his home volume, you can just refer to get Harbhajan KCI daughter, it's our standard, docket image, but all the experimental versions for Java, 10 and 11 are compatible yesterday. So you just follow these guidelines and set up whatever you need to get your own environment and that's useful yeah and if you're interested to get some examples. For example, yeah we'll just switch to status update one of the examples I use by John Pola.

A

So he is working on easy Jenkins project which spins up everything in docker compose, and it also has packaging for Java, 10, working progress and yeah. Another example of for configuration is inertia, damaging his configuration as code. He is also a pull request for Java support experiments, so this is a pretty big project because it demonstrates development of pipeline degrees and it uses CI, Jenkins IO our internal instance as an example. So it has a lot of different configurations like init scripts and brain Chema.

A

Domain host configuration is code talking being developed by Nikhil, so you can just take this branch and it's based on blows now also, and we interview configures, the environment sets up some demo pipeline jobs, etc. So if you want to try it out, you can just try this container as well and I can push it to my doctor, Hubbard house, so that somebody can evaluate that if you're interested.

A

A

So I guess I should finally stop screen sharing, because otherwise I will start showing something else.

A

C

That sounds good I, think I'm gonna go get a big cup of coffee and then they can pick about toured.

A

Okay, hmm great and good luck with you and Jonah. Thank.

C

A

Yes, so if you need any advice, then yeah just pin casting and get a shot, so we will be able to answer your questions. Yeah.

C

I have a feeling you made it look easy, so I'm gonna go find, find the reality. Okay,.

A

C

A

This evening we have a session with project a jigsaw leaders, so we will have several coal country core contributors, including mark Raynald, Apple Sanders joining us and they will answer our questions about Java 10. So if you have any hard core questions, please come there. So.

C

If we haven't figured out how to replace all our fine glasses, well tell us them what's the best strategy for that yeah.

A

Jake this is a huge development to little project and it depends on a huge number of other development tools, especially in the Maven scope, so yeah. It will be a big journey for us to get everything running on Java 10, but yeah I think it's interesting for us. It's very useful for Jenkins ecosystem and should be useful for Java ecosystem as well, because we contribute to common Joe and medium to link. So I think that is a win-win for everybody. Great!

A

Ok! So thanks everybody and you have to see you on beaming, hey.

C

Thanks so much you're like okay.

A

I'm, stopping the broadcast.